Selenium and Iodine

Hey All,
I live in a Georgia, lots of Granite low in Iodine apparently. I am currently taking Magnascent early in the AM and SSKI several hours later and Magnascent about 1 hour before bedtime (currently 2 drops each time). What would be the advisability of adding 200 Mcg of Selenium during the day and at what intervals. I'm trying after a lifetime of self abuse to improve the damage I and age have inflicted on this old body.

Thanks and God Bless, Ed Tweet